Public bug reported: This issue can be reproduced on AMD64 KVM //bare-metal node, s390x zKVM node The test itself will pass, but the system will hang after a few second.
Steps: 1. Deploy a node with 4.4 Xenial 2. Run the ubuntu_nbd_smoke_test If you have access to the console, you will see that this system actually bumped into a kernel panic: Unable to handle kernel pointer dereference in virtual kernel address space failing address: 000003ff802c1000 TEID: 000003ff802c1803 Fault in home space mode while using kernel ASCE. Log here: https://pastebin.ubuntu.com/p/dNmtvbGjmz/ ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-136-generic 4.4.0-136.162 ProcVersionSignature: Ubuntu 4.4.0-136.162-generic 4.4.144 Uname: Linux 4.4.0-136-generic s390x NonfreeKernelModules: zfs zunicode zcommon znvpair zavl AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access '/dev/snd/': No such file or directory AplayDevices: Error: [Errno 2] No such file or directory: 'aplay' ApportVersion: 2.20.1-0ubuntu2.18 Architecture: s390x ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord' CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Date: Thu Sep 20 03:46:00 2018 HibernationDevice: RESUME=UUID=ca468a9c-9563-442c-85c6-6055e800a66e IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig' Lspci: Lsusb: Error: command ['lsusb'] failed with exit code 1: PciMultimedia: ProcFB: Error: [Errno 2] No such file or directory: '/proc/fb' ProcKernelCmdLine: root=UUID=b65b756a-ba4e-4c53-aa32-0db2bdb50bb3 crashkernel=196M RelatedPackageVersions: linux-restricted-modules-4.4.0-136-generic N/A linux-backports-modules-4.4.0-136-generic N/A linux-firmware 1.157.20 RfKill: Error: [Errno 2] No such file or directory: 'rfkill' SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug package-from-proposed s390x third-party-packages xenial -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1793464 Title: Kernel panic after the ubuntu_nbd_smoke_test on Xenial kernel To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1793464/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
